This Wossner forged piston kit is designed for SHERCO SE2.5i-F motorcycles from 2008 to 2012, offering a 78.01mm bore size with a slight oversize of +0.01mm for precise fit and performance. Manufactured in Germany, it features advanced engineering for improved heat transfer and structural integrity under high stress, maintaining OEM compression specifications.

Features

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  Forged construction for enhanced strength and durability

  
  


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  Engineered for optimal heat transfer from combustion chamber to cylinder walls

  
  


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  Elliptical piston shape for uniform expansion and even thrust load distribution

  
  


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  Designed to prevent piston collapse under high temperatures and pressures

  
  


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  Manufactured in Germany

  
  

Specifications

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  Bore: 78.01mm

  
  


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  Piston code: Wossner 8905DB (+0.01mm oversize)

  
  


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  Clip part number: CW16

  
  


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  Piston pin: WP070

  
  


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  Ring set: 780XAS-2

  
  


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  Displacement: 249 cm³

  
  


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  Stroke: 52.2 mm

  
  


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  Clearance: 0.06 mm

  
  


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  Compression ratio (Wossner): OEM

  
  


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  OEM compression ratio: 13.20:1

  
  


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  Dome volume: +3.60 cm³

  
  


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  Compression height: 18.40 mm

  
  

Cross-Reference OEM Part Numbers

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  Part No. 56-W9879.B.WO

  
  

Vehicle Fitments

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  SHERCO SE2.5i-F 2008–2012 (4-stroke, 250cc)